In 1998, Wei Dai published a description of "b-money", characterized as an anonymous, distributed electronic cash system. Shortly thereafter, Nick Szabo described bit gold. Like bitcoin and other cryptocurrencies that would follow it, bit gold (not to be confused with the later gold-based exchange, BitGold) was described as an electronic currency system which required users to complete a proof of work function with solutions being cryptographically put together and published. A currency system based on a reusable proof of work was later created by Hal Finney who followed the work of Dai and Szabo.
All of those factors make mining cryptocurrencies an extremely competitive arms race that rewards early adopters. However, depending on where you live, profits made from mining can be subject to taxation and Money Transmitting regulations. In the US, the FinCEN has issued a guidance, according to which mining of cryptocurrencies and exchanging them for flat currencies may be considered money transmitting. This means that miners might need to comply with special laws and regulations dealing with this type of activities.
You don‘t need to understand the details about SHA 256. It‘s only important you know that it can be the basis of a cryptologic puzzle the miners compete to solve. After finding a solution, a miner can build a block and add it to the blockchain. As an incentive, he has the right to add a so-called coinbase transaction that gives him a specific number of Bitcoins. This is the only way to create valid Bitcoins.
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On 21 November 2017, the Tether cryptocurrency announced they were hacked, losing $31 million in USDT from their primary wallet. The company has 'tagged' the stolen currency, hoping to 'lock' them in the hacker's wallet (making them unspendable). Tether indicates that it is building a new core for its primary wallet in response to the attack in order to prevent the stolen coins from being used.
Mostly due to its revolutionary properties cryptocurrencies have become a success their inventor, Satoshi Nakamoto, didn‘t dare to dream of it. While every other attempt to create a digital cash system didn‘t attract a critical mass of users, Bitcoin had something that provoked enthusiasm and fascination. Sometimes it feels more like religion than technology.
The SEC is giving money fund boards of directors the discretion whether to impose a liquidity fee if a fund’s weekly liquidity level falls below the required regulatory threshold, and/or to suspend redemptions temporarily, i.e., to "gate" funds, under the same circumstances. These amendments will require all non-government money funds to impose a liquidity fee if the fund’s weekly liquidity level falls below a designated threshold, unless the fund’s board determines that imposing such a fee is not in the best interests of the fund.
A second solution, more focused on money market funds directly, is to re-regulate them to address the common misunderstandings, and to ensure that money market "depositors", who enjoy greater interest rates, thoroughly understand the actual risk they are undertaking. These risks include substantial interconnectedness between and among money market participants, and various other substantial systemic risks factors.
Generally, your money is protected and backed by the full faith and credit of the U.S. government if it’s within FDIC guidelines at a bank insured by the FDIC or at an NCUA credit union, which has the NCUSIF to insure accounts. But if you have money over the FDIC limit or funds that exceed the NCUSIF insurance limits, you could lose money if that financial institution fails. Both the FDIC and NCUA offer estimators to help you estimate whether your bank or credit union balances may be covered. Always double-check with the FDIC or NCUA and your financial institutions to confirm insurance coverage. You could lose money in a money market account if you don’t report an unauthorized transaction in a timely fashion. Generally, you have a window of 60 days after your statement was sent to tell your bank.
If this sounds similar to banks’ high-yield savings accounts or money market accounts, it is. The largest difference lies in the ability for yields on money market mutual funds to rise proportionately with interest rates. For example, as interest rates have risen, the yields on most bank money market accounts (which are set by the banks themselves) have stayed relatively flat, while money market mutual fund yields have increased.